Download or read book Growth Tissue Composition and Stoichiometry of Duckweed Grown in Low Nutrient Backwaters of the Upper Mississippi River written by John F. Sullivan and published by . This book was released on 2012 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cultural eutrophication of aquatic systems has received considerable attention in our nations waters though much of it in the past has focused on nutrient enrichment problems in lakes. More recent attention has been made on evaluating the impacts of nutrients in riverine systems (Hilton 2006, UMRBA 2011). Recent evidence suggests that nutrient-related impacts in rivers may come in forms other than nuisance blue-green algae blooms that are typical in eutrophic lakes. The development of thick benthic or surface mats of filamentous algae or duckweed in quiescent in riverine aquatic habitats as a result of nutrient enrichment are examples of problems that may develop in these systems. These mats can result in negative impacts to aquatic life and obstruct recreational uses. Such conditions occur commonly during mid-summer periods in shallow vegetated areas of the Upper Mississippi River (UMR), especially in off-channel sloughs, backwaters and marshes. The objective of this work was to further define and verify nutrient conditions that limit the growth of FFP in UMR backwaters and to identify tissue nutrient thresholds and stoichiometry that are suggestive of nutrient-limited growth. We focused our study in areas where summer water column nutrient concentrations were normally low and seeded the sites with healthy duckweed placed in enclosures. This allowed us to measure duckweed growth rates, tissue nutrient composition and stoichiometry in areas where nutrient limitation was more likely and duckweed was uncommon or absent. We believed this approach would allow us to more accurately characterize nutrient conditions and tissue composition that are suggestive of nutrient limitation and help verify our evaluations made in comparative studies of FFP growth in different UMR backwaters.
Download or read book Duckweed Biological Chemistry and Applications written by Marvin Edelman and published by Frontiers Media SA. This book was released on 2021-02-03 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Physiological Growth Parameters on Duckweed Lemnaceae in a Re circulating and Vertical Cultivation System written by Finn Petersen and published by . This book was released on 2023* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Duckweeds (Lemnaceae) are the fastest-growing angiosperms on earth. Five different genera, compromising 36 species of these floating freshwater plants, are distributed around the world. They are highly interesting for different fields of application due to their fast growth rate and biomass production, their high nutritional value and their variability of nutritional composition, which can be influenced by cultivation conditions. For industrial purposes, large amounts of duckweed with a certain quality are required at any time of the year. Therefore, a standardized production process with a focus on plant physiological growth parameters is needed. For this dissertation, the effect of the nutrient medium, especially the nitrate-N to ammonium-N ratio and nutrient concentration, on the relative growth rates (RGRs) and crude protein contents (CPCs) of two duckweed species (Lemna minor and Wolffiella hyalina) was investigated under non-axenic cultivation conditions. Furthermore, the effect of different light intensities and spectral distributions on RGR, CPC and chlorophyll a content was investigated using a small-scale indoor vertical farm under non-sterile cultivation conditions. Based on these results and experiences with the previously used cultivation systems, a large-scale Indoor Vertical Farm was developed. It consists of nine vertically stacked production basins (1.95 x 1.45 x 0.1 m), resulting in a total production area of ca. 25.5 m2. The nutrient solution is re-circulating within the system and the nutrients are dosed automatically based on the electrical conductivity. Most abiotic growth parameters are controllable and adjustable. During a 40-day production phase a total of 35.6 kg of fresh L. minor biomass was harvested, which corresponds to ca. 900 g per day.
Download or read book Duckweed Aquaculture written by Paul Skillicorn and published by World Bank Publications. This book was released on 1993 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiple Roles of Alien Plants in Aquatic Ecosystems from Processes to Modelling written by Rossano Bolpagni and published by Frontiers Media SA. This book was released on 2020-10-23 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Introduction to Limnology written by Stanley I. Dodson and published by McGraw-Hill Science, Engineering & Mathematics. This book was released on 2005 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The text is an introduction to the ecology, chemisty and physics of freshwater systems, with an emphasis on the human perspective "--Page [4] de couv.
Download or read book Freshwater Ecology written by Walter K. Dodds and published by Academic Press. This book was released on 2010-11-03 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freshwater Ecology, Second Edition, is a broad, up-to-date treatment of everything from the basic chemical and physical properties of water to advanced unifying concepts of the community ecology and ecosystem relationships as found in continental waters.With 40% new and expanded coverage, this text covers applied and basic aspects of limnology, now with more emphasis on wetlands and reservoirs than in the previous edition. It features 80 new and updated figures, including a section of color plates, and 500 new and updated references. The authors take a synthetic approach to ecological problems, teaching students how to handle the challenges faced by contemporary aquatic scientists.This text is designed for undergraduate students taking courses in Freshwater Ecology and Limnology; and introductory graduate students taking courses in Freshwater Ecology and Limnology. - Expanded revision of Dodds' successful text. - New boxed sections provide more advanced material within the introductory, modular format of the first edition. - Basic scientific concepts and environmental applications featured throughout. - Added coverage of climate change, ecosystem function, hypertrophic habitats and secondary production. - Expanded coverage of physical limnology, groundwater and wetland habitats. - Expanded coverage of the toxic effects of pharmaceuticals and endocrine disrupters as freshwater pollutants - More on aquatic invertebrates, with more images and pictures of a broader range of organisms - Expanded coverage of the functional roles of filterer feeding, scraping, and shredding organisms, and a new section on omnivores. - Expanded appendix on standard statistical techniques. - Supporting website with figures and tables - http://www.elsevierdirect.com/companion.jsp?ISBN=9780123747242
Download or read book Biological Synopsis of Grass of Grass Carp Ctenopharyngodon Idella written by B. C. Cudmore-Vokey and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book William Osler written by Michael Bliss and published by University of Toronto Press. This book was released on 2002-04-01 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: In his time the most famous physician in the world, Canadian-born William Osler (1849-1919) is still the best-known figure in the history of medicine. This new, definitive biography by Michael Bliss is the first full-scale life of Osler to appear since 1925. An award-winning medical historian, Bliss draws on many untapped sources to recreate Osler's life and medical times for a new generation of readers. Born at Bond Head, north of Toronto, Osler rose from obscurity to become the greatest medical teacher and writer in three countries. At Canada's McGill University, America's Johns Hopkins University, and finally as regius professor at Oxford, Osler was idolized by two generations of medical students and practitioners, for whom he came to personify the ideal doctor. His quest was to bring high standards and scientific methods into general practice in the medical world and to give teaching hospitals a solid place in the education of doctors. The publication of his book, The Principles and Practice of Medicine (1892), established him as the authority of modern medicine, a position he held well into the new century. Osler was revered as the high priest of the advent of twentieth-century medicine. In this fine biography, Michael Bliss animates the epic quality of Osler's life - not only in telling his personal story, but in setting that story against the dramatic backdrop of the coming of modern medicine. Winner of the Jason A. Hannah Medal, awarded by the Royal Society of Canada and the Hannah Institute for the History of Medicine
Download or read book Aquatic Ecotoxicology written by Claude Amiard-Triquet and published by Academic Press. This book was released on 2015-06-11 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic Ecotoxicology: Advancing Tools for Dealing with Emerging Risks presents a thorough look at recent advances in aquatic ecotoxicology and their application in assessing the risk of well-known and emerging environmental contaminants. This essential reference, brought together by leading experts in the field, guides users through existing and novel approaches to environmental risk assessment, then presenting recent advances in the field of ecotoxicology, including omics-based technologies, biomarkers, and reference species. The book then demonstrates how these advances can be used to design and perform assays to discover the toxicological endpoints of emerging risks within the aquatic environment, such as nanomaterials, personal care products, PFOS and chemical mixtures. The text is an invaluable reference for any scientist who studies the effects of contaminants on organisms that live within aquatic environments. - Provides the latest perspectives on emerging toxic risks to aquatic environments, such as nanomaterials, pharmaceuticals, chemical mixtures, and perfluorooctane sulfonate (PFOS) - Offers practical guidance on recent advances to help in choosing the most appropriate toxicological assay - Presents case studies and information on a variety of reference species to help put the ecotoxicological theory into practical risk assess
Download or read book Sanatorium Girl written by Drake and published by iUniverse. This book was released on 2005-11-10 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1920, tuberculosis was the main killer of young people. Occupational therapy had just begun as a profession unto itself. The Mississippi State Tuberculosis Sanatorium had been open only two years. Louisa Anne McFarland, from Jones County, was sent to the Sanatorium to heal her tubercular lungs. On the same path so many TB patients took, she remained to work after being healed. She learned how to do occupational therapy with other patients. Early occupational therapists seldom had formal professional education or any kind of formal credentialing. This novel is an example of how such unrecognized women of the early 20th century saw a need and filled it. With so many young adults thrust together, the outcome of sex and unwanted pregnancy was inevitable.
Download or read book Marine Ecotoxicology written by Julián Blasco and published by Academic Press. This book was released on 2016-08-05 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Ecotoxicology: Current Knowledge and Future Issues is the first unified resource to cover issues related to contamination, responses, and testing techniques of saltwater from a toxicological perspective. With its unprecedented focus on marine environments and logical chapter progression, this book is useful to graduate students, ecotoxicologists, risk assessors, and regulators involved or interested in marine waters. As human interaction with these environments increases, understanding of the pollutants and toxins introduced into the oceans becomes ever more critical, and this book builds a foundation of knowledge to assist scientists in studying, monitoring, and making decisions that affect both marine environments and human health. A team of world renowned experts provide detailed analyses of the most common contaminants in marine environments and explain the design and purpose of toxicity testing methods, while exploring the future of ecotoxicology studies in relation to the world's oceans. As the threat of increasing pollution in marine environments becomes an ever more tangible reality, Marine Ecotoxicology offers insights and guidance to mitigate that threat. - Provides practical tools and methods for assessing and monitoring the accumulation and effects of contaminants in marine environments - Unites world renowned experts in marine ecotoxicology to deliver thorough and diverse perspectives - Builds the foundation required for risk assessors and regulators to adequately assess and monitor the impact of pollution in marine environments - Offers helpful insights and guidance to graduate students, ecotoxicologists, risk assessors, and regulators interested in mitigating threats to marine waters
Download or read book Self Organization in Biological Systems written by Scott Camazine and published by Princeton University Press. This book was released on 2020-05-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The synchronized flashing of fireflies at night. The spiraling patterns of an aggregating slime mold. The anastomosing network of army-ant trails. The coordinated movements of a school of fish. Researchers are finding in such patterns--phenomena that have fascinated naturalists for centuries--a fertile new approach to understanding biological systems: the study of self-organization. This book, a primer on self-organization in biological systems for students and other enthusiasts, introduces readers to the basic concepts and tools for studying self-organization and then examines numerous examples of self-organization in the natural world. Self-organization refers to diverse pattern formation processes in the physical and biological world, from sand grains assembling into rippled dunes to cells combining to create highly structured tissues to individual insects working to create sophisticated societies. What these diverse systems hold in common is the proximate means by which they acquire order and structure. In self-organizing systems, pattern at the global level emerges solely from interactions among lower-level components. Remarkably, even very complex structures result from the iteration of surprisingly simple behaviors performed by individuals relying on only local information. This striking conclusion suggests important lines of inquiry: To what degree is environmental rather than individual complexity responsible for group complexity? To what extent have widely differing organisms adopted similar, convergent strategies of pattern formation? How, specifically, has natural selection determined the rules governing interactions within biological systems? Broad in scope, thorough yet accessible, this book is a self-contained introduction to self-organization and complexity in biology--a field of study at the forefront of life sciences research.
Download or read book Guidelines for the Integrated Management of the Watershed written by Maciej Zalewski (writer on music) and published by UNEP/Earthprint. This book was released on 2002 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's water resources are becoming scarcer due to overexploitation and quality degradation, and in order to stop this trend, there is a need to develop proper water planning and management approaches. This publication considers the complementary use of ecohydrology and phytotechnology in the context of integrated water resource management, in order to achieve and promote economic and social development without jeopardising the sustainability of the ecosystem.
Download or read book Sisters Super Creeps and Slushy Gushy Love Songs written by Karen McCombie and published by . This book was released on 2011 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ally knows her super-efficient big sis Linn finds their chaotic family a bit ... exasperating. But when Linn falls for Q, the tearaway lead singer in a local band, all her sensible ways go out of the window. Everyone else can see that Q's a creep, but does Ally have the courage to burst Linn's heart-shaped bubble?
Download or read book Crossword Solver written by Anne Stibbs and published by Bloomsbury Pub Limited. This book was released on 2000 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: An aid to solving crosswords. It contains over 100,000 potential solutions, including plurals, comparative and superlative adjectives, and inflections of verbs. The list extends to first names, place names and technical terms, euphemisms and compound expressions, as well as abbreviations.
Download or read book Indicators of Ecosystem Structure and Function for the Upper Mississippi River System written by Nathan R. De Jager and published by . This book was released on 2018 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
